In a reflector antenna[?], the relative reduction in the effective aperture of the antenna caused by the masking effect of other antenna parts, such as a feed horn or a secondary reflector, which parts obstruct the radiation path.
... Indian Reservation[?]
Laguna Indian Reservation[?]
Canoncito Indian Reservation[?]
Isleta Indian Reservation[?]
Zia Indian Reservation[?]
Jicarilla ...